100% yes even more so.
They "knew" Hildog was a 100% lock according to their hearts, heads, polls, msm... they said to themselves as they laughed "no freakin way will Trump win"..... people mocked, joked, laughed, etc... so not going to waste my time...
Then Trump won
Ponder the point you are making and then read the last line.
If women turned up en masse to vofe for Hillary as the first female.president and she lost, you shouldn't then conclude the following candidate, who is a male, will win because even more will turn up as they are upset they lost the previous election.
The unique circumstance is the key driver for additional participation.
For Obama it was the first black president, he had record black voters who following his term mostly vanished and 4.4M didn't vote (which is racist as they only turned up because the candidate was black).
For Hillary it was becomming the first female president. Women rocked up to make it happen but it wasn't enough despite the millions she poured into marketing. She lost.
Biden isn't a first of anything. First president with dementia? I don't think anybody would turnup to make that happen.